WINTER WHEAT
MicroEssentials SZ™ Nutrient Efficiency
in Winter Wheat
®
Objectives
Trial Details
•Evaluate the yield response of winter wheat
to MicroEssentials ® SZ™ (12-40-0-10S-1Zn),
MAP (11-52-0) and a MAP + AS (21-0-0-24S)
+ ZnSO4 (0-0-0-16.5S-36Zn) blend at three
different phosphorus (P) rates.
Crop Management:
•Compare the grain concentration of
phosphorus (P), sulfur (S) and zinc (Zn)
across treatments of MAP, MAP + AS + ZnSO4
and MicroEssentials ® SZ™ at a rate of 60 lbs
P2O5/ac.
CROP: Winter Wheat (Triticum aestivum, winter)
YEARS: 2012–2014
CROPPING CONDITIONS:
• P Sources: MAP, MAP + AS + ZnSO4 and MicroEssentials SZ
•P Rate: MAP and MicroEssentials SZ: 0, 30 and 60 lbs P2O5/ac
MAP + AS + ZnSO4: 60 lbs P2O5/ac
•K Rate: As required by soil test, applied to entire trial
4.2
bu/ac
Higher yield with MicroEssentials SZ
over MAP (60 lbs P2O5/ac)
•Application Timing: Preplant
Overview
•Application Method: Broadcast
•Monoammonium phosphate (MAP) is
commonly used as a P fertilizer applied to
winter wheat.
PARAMETERS MEASURED:
•G
rain yield
•MicroEssentials SZ contains N, P, S and
Zn in one nutritionally balanced granule,
providing the uniform nutrient distribution,
improved nutrient uptake and season-long
sulfur availability required for higher
yields and profitability.
•G
rain nutrient concentration P, S, Zn (12 of 17 locations)
Results
76
74.0
74
71.5
72
Yield (bu/ac)
•In addition to nitrogen (N) and P, other
nutrients like S and Zn are beneficial to achieve
maximum yield and better nutritional quality.
MicroEssentials SZ provides higher
grain quality over MAP: 3.8% for P;
4.1% for S; 2.4% for Zn
71.5
70
68
66
65.1
64
62
60
LOCATIONS: 17 trials across the U.S.
and Canada
United States – IL, IN, KS, MS, NE, OH,
OK, VA
Canada – ON
69.8
69.0
0
30
MicroEssentials® SZ™
MAP + AS + ZnSO4
MAP
60
Lbs P2O5 /ac
Fig. 1 Wheat yield response to different P sources and rates.
Note: MAP + AS + ZnSO4 was only tested at 60 lbs P2O5 /ac.
Grain P Concentration
Grain S Concentration
0.405
0.151
0.151
0.401
0.150
0.400
0.149
0.149
0.148
0.391
S (%)
P (%)
0.395
0.390
0.386
0.385
0.146
0.145
0.380
0.375
0.147
0.145
0.144
0.143
MAP
MAP + AS + ZnSO4
0.142
MAP
MAP + AS + ZnSO4
Grain Zn Concentration
33.4
33.2
Zn (ppm)
33.2
33.0
33.0
32.8
32.6
32.4
32.4
32.2
32.0
MAP
MAP + AS + ZnSO4
Summary
•Summary
•At 60 lbs P 2O5/ac, MicroEssentials ® SZ™ had a
4.2 bu/ac (6.0%) higher yield than MAP and
2.5 bu/ac (3.5%) higher yield than the MAP blend.
•Grain nutrient concentrations were higher in
MicroEssentials SZ treatments than MAP or
MAP blend treatments. Compared to MAP,
MicroEssentials SZ demonstrated the following
increases: 3.8% for P, 4.1% for S and 2.4% for Zn.
•The 30 lbs P2O5/ac of MicroEssentials SZ
outperformed the 60 lbs P2O5/ac rate of MAP and
the MAP blend. This demonstrates the increased P
efficiency of MicroEssentials SZ compared to MAP.
•MicroEssentials SZ demonstrated higher yield and
grain nutrient concentration compared to MAP or
a MAP blend. Applying MicroEssentials SZ results
in maximum yield and increased nutrient efficiency.
©2015 The Mosaic Company.
All rights reserved. SZ is a
trademark and MicroEssentials
and AgriFacts are registered
trademarks of The Mosaic
Company.
Individual results may vary,
and performance may vary
from location to location and
from year to year. This result
may not be an indicator of
results you may obtain, as
local growing, soil and weather
conditions may vary. Growers
should evaluate data from
multiple locations and years
whenever possible.
For more information, go to
MicroEssentials.com.